baber/WOPTO huggingface dataset:
Patent EP-0265922-A2 (EP)
Inventor: OSTAPCHENKO GEORGE JOSEPH
IPC: B32B27/08
Filed: 1987-10-28
Abstract: A bicomponent film of a hydrophobic layer and a hydrophillic layer of a copolyetherester elastomers bonded together which permits differential transfer of water vapor to prevent buildup of moisture comprising:
     (A) a continuous layer of a hydrophobic elastomer 0.05-0.8 mil thick and having a water vapor transmission rate of 400-2500 gmemil/m 2 /24 hrs. according to ASTM E96-66 (Procedure BW), said hydrophobic elastomer is a copolyetherester elastomer or a mixture of two or more copolyetherester elastomers having a multiplicity of recurring long-chain ester units and short-chain ester units joined head-to-tail through ester linkages, said long-chain ester units being represented by the formula
     and said short-chain ester units being represented by the formula:
     where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide)glycol having an average molecular weight of about 400-3500, and further, the amount of ethylene oxide groups incorporated in the copolyetherester or mixture of two or more copolyetheresters by the poly-(alkylene oxide)glycol is not greater than about 20 weight percent based upon the total weight of the copolyetherester or mixture of two or more copolyetheresters; R is a divalent radical remaining after removal of carboxyl groups from a dicarboxylic acid having a molecular weight less than 300; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 250; and said hydrophobic copolyetherester or mixture of two or more copolyetherester has from about 25-80 weight percent short-chain ester units;   (B) a continuous layer of a hydrophilic elastomer 0.3-6 mil thick and having a water vapor transmission rate of at least 3500 gmemil/m 2 /24 hrs. according to ASTM E96-66 (Procedure BW), said hydrophilic elastomer is a copolyetherester elastomer or a mixture of two or more copolyetherester elastomers having a multiplicity of long-chain ester units and short-chain ester units joined head-to-tail through ester linkages represented by formulae (I) and (II) above and having the values given above with the proviso that the amount of ethylene oxide groups incorporated in the copolyetherester or mixture of two or more copolyetheresters by the poly(alkylene oxide)glycol is from about 25-68 weight percent based on the total weight of the copolyetherester or mixture of two or more copolyetheresters, and the hydrophilic copolyetherester or mixture of two or more copolyetheresters contain about 25-80 weight percent short-chain ester units; and said bicomponent film of the hydrophobic and hydrophilic layers has a separation ratio for water vapor of at least 1.2, preferably at least about 1.4, as determined by ASTM E96-66 (Procedure BW).
Patent EP-0234644-A2 (EP)
Inventor: DUNN WILLIAM ANDREW ERNEST
IPC: G01J5/02
Filed: 1987-02-11
Abstract: An infrared detector has an infrared detector element (2) mounted at a first part (11) of a housing (1), a Joule-Thomson cooling element (3) accommodated in a second part (12), and an infrared transmissive window (15) at the front of the housing (1). A compact, space-saving and light weight structure with improved optical efficiency is obtained. The core of the Joule-Thomson cooling element (3) forms a third part (13) of the housing (1), and these second and third parts (12 and 13) of the housing extend towards the front of the detector. The cooler core (13) which may carry a cooled filter (25) has a hollow shape or is otherwise infrared transmissive in front of the detector element (2) and can direct incident radiation (50) towards the detector element (2). For this purpose the inner surface of the hollow core (13) may carry a reflective conductor pattern (18,19) which also provides electrical connections for the detector element (2). This core part (13) may seal a channel in a grooved intermediate member (48 in Figure 3) between the second and third housing parts (12 and 13) so as to form the Joule-Thomson cooling element (3) without requiring conventional finned metal tubing (31).
Patent EP-0268333-A2 (EP)
Inventor: SPOORMANS ROBERTUS JOSEPHA ELI
IPC: G07D13/00
Filed: 1987-11-11
Abstract: The present coin controlled system is used in a telephone apparatus and includes a removable cash box in the cover (2) of which are mounted a cash box identity indicating circuit (SEL) and a coin detection oscillator (CL, NM2, PM) which are able to be connected to an output oscillator (R3, C2, C3, T1, T2). This oscillator is fed via a receive circuit (CR1, CR3, R2, C1, d1, C4) from a computer (MC, IC) which is mounted in the casing of the apparatus and which includes a transmitter/receiver circuit able to cooperate with the cash box receiver circuit and output oscillator.
Patent EP-0240220-A2 (EP)
Inventor: WHYTE JON FRANK ROSS
IPC: B01D29/11
Filed: 1987-03-23
Abstract: A fluid filtering system comprises two filter units l, 2 arranged in parallel so that during normal operation fluid is caused to flow through both of the filter units simultaneously. 
     Each of the filter units l, 2 includes a filter element 3, 4 and is provided with back-flushing means to effect cleaning of the respective filter elements 3, 4. The back-flushing means may comprise a rotaty member 5, 6 mounted within the respective filter element 3,4. 
     The back-flushing means may be brought into operation by the action of a sensing means which is responsive the degree of contamination of the filter units. The sensing means may also be operable to cause fluid to flow through one filter unit only whilst the back-flushing means   is in operation in the other.
Patent EP-0240323-A2 (EP)
Inventor: GAROFF THOMAS
IPC: C08F10/00
Filed: 1987-03-31
Abstract: Catalyst components for alpha-olefin polymerization catalysts (which comprise an organoaluminium compound, an external electron donor and a solid magnesium-­containing catalyst component obtained by the reaction of a solid magnesium-containing carrier component with a titanium halogen compound) are prepared by the steps of:
     (a) bringing magnesium sulphate, in the form of an aqueous solution or an alcoholic suspension, into contact with an aqueous or alcoholic solution of barium or calcium chloride and separating the undissolved part from the solution or suspension;   (b) selectively evaporating the solution until dry and heating the obtained residue at 130-150°C, and dissolving this residue in alcohol if water has been used as solvent in step (a);   (c) drying the alcoholic solution of the magnesium component by periodic azeotropic distillation;   (d) precipitating the solid carrier component from the alcohol solution; and   (e) reacting the solid carrier component with a titanium halogen compound in the presence of an internal electron donor or without an electron donor.
Patent EP-0254483-A2 (EP)
Inventor: ALBERTSON WILLIAM CONRAD
IPC: F16K31/06
Filed: 1987-07-16
Abstract: A fluid pressure regulator valve (l0) comprises a linear solenoid (20) that acts on an asymmetrical spool valve (l8) to selectively communicate one port (l6) with at least one other (l2,l4) to thereby regulate fluid pressure.
Patent EP-0255274-A2 (EP)
Inventor: KAWAI RYUICHIRO PATENTS DIVISI
IPC: H03G3/20
Filed: 1987-07-17
Abstract: A gain control circuit includes first and second clamping circuits (1, 3) each of which has a DC shift circuit (6, 9) and a comparator (7, 10) comparing the output of the DC shift circuit (6, 9) with a reference voltage and providing a feedback signal to the respective DC shift circuit (6, 9). A peak detector (4) is responsive to the output of the second clamping circuit (3) and is connected with a comparator (5) which supplies a gain control signal to a variable gain amplifier (2) located between the clamp circuits (1, 3) and also to the comparators (7, 10) associated with the DC shift circuits (6, 9) for varying the follow-up speeds of the clamping circuits (1, 3).
Patent EP-0259171-A2 (EP)
Inventor: MILLER ALAN
IPC: G02F3/02
Filed: 1987-09-04
Abstract: An optically bistable device comprises a Fabry-Perot etalon 10 containing intracavity liquid crystal material 14. Etalon mirrors 18 of deposited silver are overlaid on indium tin oxide electrodes 16. The electrodes 16 provide electrical biassing means for the material 14, which exhibits both optical nonlinearity and electro-optic tunability of refractive index. The etalon 10 has an interference fringe maximum 64 at a wavelength λ m1 . The fringe is tunable to λ m2  by applying a bias voltage across the mirrors 18. A light beam 26 illuminates the etalon 10, the beam 26 having a wavelength λ s  where λ m2  is between λ s  and λ m1 . The beam intensity is sufficient to induce bistable etalon switching for a fringe at λ m2  but not for a fringe at λ m1 . Tuning the etalon fringe electro-optically from λ m1  to λ m2  initiates optical bistability without the prior art requirement of either variable light intensity or an external electrical feedback loop.
Patent EP-0269319-A2 (EP)
Inventor: OIKAWA HIDEAKI
IPC: C08G73/10
Filed: 1987-11-12
Abstract: Polyimide of this invention is almost colorless and has remarkably high light transmittance as well as excellent processability and adhesive properties at high temperatures in addition to its substantial high-temperature stability. 
     The polyimide is a novel polyimide capable of being used for space and aeronautical materials, electric and electronic members, automotive parts, and furthermore for high-temperature adhesives. 
     The polyimide has recurring units of the following formula (I):
      wherein X is a radical selected from the group consisting of a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, sulfonyl radical and thio radical, and each nitrogen atom of imide ring is located simultaneously at meta- or para-position to ether linkage. 
     The polyimide of this invention is prepared by reacting 4,4ʹ-(p-phenylenedioxy)diphthalic dianhydride with an ether diamine having the following general formula (V):
        and successively imidizing the resultant polyamic acid.
Patent EP-0267796-A2 (EP)
Inventor: BUZBEE WILLIAM B
IPC: G06F9/45
Filed: 1987-11-12
Abstract: Amethod for efficient generation of compiled code is presented in accordance with the preferred embodiment of the present invention. In order to gain significant performance advantage with a minimum of code expansion. out-of-line code sequences are used. An out-of-line code sequence is a series of instructions that are invoked by a simplified calling mechanism in which almost no state-saving is required. Additionally, out-of-line code sequences is designed so that a single copy can exist on a system and all processes running on that system can access it. A series of out-of-line code sequences can be generated, each member of the series being tailored to a particular combination of compile-time information.
Patent EP-0262063-A2 (EP)
Inventor: DESMURS JEAN
IPC: C07C37/86
Filed: 1987-09-24
Abstract: Mixtures produced by chlorination of phenol/chlorophenols are effectively stabilized by stirring same in the presence of a stabilizing amount of at least one strong protonic acid and/or a Lewis acid.
Patent EP-0235073-A2 (EP)
Inventor: WEINER HARVEY IRVIN
IPC: F04D29/56
Filed: 1987-02-17
Abstract: An actuator assembly for imparting non-proportional tangential displacement (22b) to a plurality of unison rings (16b, 16c) disposed about the exterior of a compressor case (10b) is provided. The assembly includes a linear drive component (26b) mounted on trunnions (74,76) and supported by a frame 48. The drive component (26b) imparts a rotating motion to a crankshaft 70 which in turn drives the unison rings (16b, 16c) via the respective crank arms (42b, 42c) and pushrod (30b,30c) linkages. Radial loading of the compressor case (10b) is avoided by aligning both the pushrod (30b) and an elongated frame end (50) tangential to the compressor case (10b).
Patent EP-0253780-A2 (EP)
Inventor: GAZZARRINI VINICIO
IPC: B65H3/00
Filed: 1987-07-08
Abstract: A device for gripping a flat panel of thin flexible material comprises a linear spring or meshed arrays of bars supported by a mechanism which can stretch/separate the turns/bars and then allow them to contract back together again after being applied to the surface of the fabric, to induce and grip creases therein.
Patent EP-0292662-A2 (EP)
Inventor: LABRIE ROBERT L
IPC: C13B20/14
Filed: 1988-03-16
Abstract: Improved method for demineralizing a sugar-containing solution using an ion exchange resin in bead form wherein the mean bead diameter is from 400 to 700 µm and the bead diameter distribution is such that at least 80 volume percent of the beads have diameters which fall within a range of ±15 percent of the volume average diameter of the resin used.
Patent EP-0283030-A2 (EP)
Inventor: TUTUMI KAZUMICHI MITSUBISHI DE
IPC: G01F1/32
Filed: 1988-03-18
Abstract: A measuring device for measuring an amount of suction air of an engine comprises a Karman vortex sensor (2) disposed in an engine suction conduit (1), a low-pass filter (41) for removing high frequency noise component from an output of the Karman vortex sensor (2), a first binarizing means (42) for comparing an output of the low-pass filter (41) with a predetermined value to provide a first series of Karman vortex pulses, a second binarizing means (43) for comparing the output of the sensor (2) with a predetermined value to provide a second series of Karman vortex pulses and a noise detector (44) for comparing the number of pulses from the first binarizing means (42) with that from the second binarizing means (43) to judge an existence of high frequency noise at the output of the sensor (2), upon which a time constant of the low-pass filter (41) is switched to exclude noise from the output of the Karman vortex sensor (2) even when a throttle opening of the engine is small.
Patent EP-0286954-A2 (EP)
Inventor: KORTHAUS ERNST
IPC: F04D9/02
Filed: 1988-04-06
Abstract: The invention is directed to a selfpriming centrifugal pump having a symmetrical annular guide channel with a centrally mounted cover disc. A pair of guide ribs improve the loading of the impeller and increase the capacity for drawing air by suction. The guide rib pair is mounted in the annular guide channel. Each guide rib includes an injection rib and a separation rib. The ribs preferably have a width corresponding to the width of the annular guide channel and are arranged on a secant drawn through the circular peripheral band defined by the outer tips of the vanes of the impeller as the latter rotates.
Patent EP-0301437-A2 (EP)
Inventor: FIELD BRUCE F
IPC: E01H1/05
Filed: 1988-07-22
Abstract: An automatic tool torque compensator for a surface maintenance machine such as a sweeper or scrubber (10) includes an actuator (86, 286) for raising and lowering one or more rotatable surface maintenance tools (16) and one or more electric (54, 56) or hydraulic (254, 256) motors for driving the tools. There is a circuit for sensing the cur­rent load in at least one of the electric motors, or the differ­ential pressure in one or more of the hydraulic motors, and pro­viding a signal representative thereof. There is a circuit for manually selecting a desired tool torque to be applied from a plurality of possible tool torques and for providing an electri­cal signal representative thereof. The electrical signal repre­sentative of the desired tool torque to be applied to the tools and the drive motor load current signal or the differential hy­draulic pressure signal representative of actual tool torque applied to the tools are used to control the actuator for raising and lowering the surface maintenance tools. This automatically varies the pressure of the tools against the surface to maintain a desired torque in the tools at a nearly constant value even though the surface may vary in its resistance to the tools due to variations in its elevation or texture, or the degree of soil­age on it.
Patent EP-0304698-A2 (EP)
Inventor: SIPILA EERO SEPPO KALERVO
IPC: B65G1/16
Filed: 1988-08-04
Abstract: The invention relates to a method of and a storage rack for storing glass sheets in a substantially upright position spaced at a small distance from each other. Inter­mediate supports (2), together with a lever arm (4), form a bell crank whose angular point is linked to a carrier beam (8) by means of a pivot (9). The free end of each lever (4) carries a roller or a sliding surface (5), positioned at a location be­tween intermediate supports (2). As the glass sheets are placed on the rack in a manner that the lower edge of glass sheet (7) is set upon rollers (5), the dead weight of a glass sheet lifts up the intermediate supports (2) for separating the glass sheets from each other.
Patent EP-0311887-A2 (EP)
Inventor: GRABSKA-SZAFIR DAGMARA
IPC: C02F3/20
Filed: 1988-10-05
Abstract: The subject of the invention is a mechanical-biological sewage treatment plant designed particularly for large tourist subjects, small towns and settlements and food processing plants. The gist of the invention, as shown in Fig. 1, consists in that the sand and screenings catcher /1/ and secondary sedimentation tanks /4, 5, 6, 7/ as well as stabilization tanks /8, 9/ are equip­ped with air lift pumps /13/ for removing surface scum, floating parts and liquids off the surface and that each activated sludge chamber /2, 3/ is equipped with aerating grid /11/ for deep aera­ation and coupled with at least one secondary sedimentation tank /4, 6/ equipped with an air lift pump /14/ for removing sludge from the bottom.
Patent EP-0295745-A2 (EP)
Inventor: BACHMANN PETER DR
IPC: C03B37/018
Filed: 1988-06-09
Abstract: In the production of optical fibres by the PCVD process, the process yield ( eta ) is increased, in particular at high deposition rates (<o>m</o>), by shortening the geometrical taper (line IV) without thereby forming optical tapers. This is achieved by depositing glass in layers on the inside of a glass tube and simultaneously on a glass rod having a circular cross section which is arranged inside the glass tube in such a manner that its longitudinal axis coincides with the longitudinal axis of the glass tube, the radius of the glass rod being at most 0.67 times and at least 0.2 times the internal radius of the glass tube, and removing the glass rod from the glass tube when the glass deposition is complete. <IMAGE>
Patent EP-0281318-A2 (EP)
Inventor: TAKEHISA FUMITAKA
IPC: B22D17/20
Filed: 1988-02-25
Abstract: A die-casting method in which a lubricant is heated to a temperature higher than a temperature of mold cavity surfaces before molten metal is injected into the mold cavity. The lubricant is heated when the mold cavity is formed by bringing a movable mold (12) into contact with a stationary mold (8). The heated lubricant is intro­duced into the mold cavity and applied on the mold cavity surfaces, and the molten metal is then injected into the mold cavity. The molten metal is allowed to solidify in the mold cavity to become a solidified article. A die-casting device for carrying out this method is also provided according to the present invention.
Patent EP-0303479-A2 (EP)
Inventor: NADKARNI SADASHIV K
IPC: C30B25/00
Filed: 1988-08-11
Abstract: The invention relates to a method of producing whiskers of silicon carbide and other materials. For the formation of silicon carbide, the method involves forming a first reaction zone (23) containing microfine particles of silicon dioxide uniformly mixed with carbon or a carbon precursor, with the ratio of the silicon dioxide to the carbon present as a starting material or derivable from the precursor being greater than about 5 to 1 by weight. A closely adjacent second reaction zone (24) is formed containing a porous fibrous mass of active carbon or an infusible carbon precursor. The reaction zones (23, 24) are heated under a non-oxidizing atmosphere to temperatures at which silicon monoxide is formed in the first reaction zone (23), diffuses to the second reaction zone (24) and reacts with carbon derived from the carbon precursor in the second reaction zone (24) to form silicon carbide whiskers. A continuous supply of a whisker-forming catalyst is provided in the second reaction zone (24), at least in the vicinity where the silicon monoxide and carbon react with each other. This can be assured, for example, by providing the whisker-forming catalyst in the first reaction zone (23) together with a catalyst volatilizing aid which enables the catalyst to diffuse to the second reaction zone (24) along with the SiO. The first reaction zone (23) may also contain a catalyst for the SiO producting reaction. By changing the starting materials, reaction temperatures etc. but using the same method steps, whiskers of other materials such as AlN, sialons, Si₃N₄ etc. can also be prepared.
Patent EP-0287462-A2 (EP)
Inventor: SAGET PIERRE
IPC: B04B5/12
Filed: 1988-04-13
Abstract: The mixture is driven through a rotor under the combined effect of a drop in pressure between the upstream side and downstream side of this rotor, and the rotation of the latter. According to the invention, the rotor consists of a stack of joined discs (36), each of which is pierced with a set of helical passages (62). Each of these passages (62) is limited by solid walls (64, 66, 68, 70) and opens out on the upstream face (37) and downstream face (39) of the disc (36) in inlet apertures (63) and outlet apertures (65) respectively. An outlet aperture (63) on a given disc is situated exactly opposite an inlet aperture (65) of the following disc. Application to the separation of the constituents of a mixture. <IMAGE>
Patent EP-0298034-A2 (EP)
Inventor: HOWELL FREDERICK HAROLD DR
IPC: G03F7/00
Filed: 1988-06-22
Abstract: Compositions containing anthraquinones having functionally substituted, for example -COOH or -CONH-NH2,  alpha , alpha -(dialkyl)alkyl groups, an amino alcohol, an epoxy resin and, if desired, a curing agent are suitable for the production of metallic coatings and images on the cured composition by exposure to light and electroless metallisation.
Patent EP-0346730-A2 (EP)
Inventor: JENSEN NIELS DUE
IPC: H02K5/128
Filed: 1989-06-06
Abstract: Submersible pump assembly with a pump and a wet-rotor motor driving the pump and with a common shaft for the motor and the pump, in which the fluid present in the rotor space (9) of the motor can be passed into the hollow shaft (5) and conveyed in the shaft as far as the pump casing in order to there bring it into heat exchange with the fluid medium via the wall of the shaft (5), in which the fluid from the shaft (5) can be returned to the rotor space (9) under pumping action and in which the entry and return points in the rotor space are arranged axially offset relative to one another. 
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Patent EP-0356836-A2 (EP)
Inventor: AOKI NOBUO
IPC: A61K35/22
Filed: 1989-08-18
Abstract: Novel thrombin-binding substances (A) and (B) are disclosed. The thrombin-binding substances have the following characteristics:
     (a) molecular weight:
   Thrombin-binding substance (A): 
90,000-92,000 under reduced conditions 
55,000-58,000 under unreduced conditions   Thrombin-binding substance (B): 
98,000-105,000 under reduced conditions 
60,000-65,000 under unreduced conditions       (b) isoelectric point:
   Thrombin-binding substance (A): pH 6.0-6.8   Thrombin-binding substance (B): pH 5.8-6.5       (c) affinity: strong affinity to thrombin   (d) activity:
   (1) capable of promoting the thrombin catalyzed activation of protein C   (2) prolongs clotting time; and       (e) stability: stable to denaturing agents (sodium dodecylsulfate and urea).   
     The thrombin-binding substances are useful as a medicine for curing thrombosis.